Core revenue funding, the cash which councils have control over to fund services, fell across all 32 Scottish local authorities. Orkney’s cash fell by 6.7%, Moray’s fell by 5.3% and Aberdeenshire’s fell by 5%.

And the report predicted that there would be more pain to come.

Across Scotland, core revenue funding would go from £9.521 billion in 2018/19 to £9.571bn the following year – a cash increase of 0.5% but a real terms decrease of minus 1.2% when inflation is taken into account.

The report said the cash allocation reduction for the Western Isles and Argyll and Bute was down to a declining population. But the reduction had come despite the areas being remote and having a growing number of elderly people.

Highlands and Islands Tory MSP Donald Cameron said cuts to island councils created the danger of a “spiral of decline” that would be difficult to reverse.

“By reducing spending in areas which are already suffering from depopulation, they are putting local councils in an impossible position,” Mr Cameron.

His Conservative colleague North East MSP Peter Chapman added: “This report makes clear, once again, that the SNP is not giving the north-east a fair deal.”

The report added that it cost £27 per property to collect council tax in the Western Isles and £17 per property in the Orkney Islands compared to the Scottish average of £7.

If the Western Isles and Orkney reduced their costs to those of the Shetland Islands, they would save £209,000 and £179,000 respectively.

A Scottish Government spokesman said: “We recognise there are challenges but we have continued to treat local government very fairly. Local authorities will receive £11.2 billion in 2019-20 through the local government finance settlement, a real terms increase in both revenue and capital funding which, together with actual council tax rises, provides an extra 5.6% in overall resources to support local services.”

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